Method index

qrenderdoc/Code/QRDUtils.cpp:3719–3782

}

QModelIndex StructuredDataItemModel::index(int row, int column, const QModelIndex &parent) const
{
  if(row < 0 || column < 0 || row >= rowCount(parent) || column >= columnCount(parent))
    return QModelIndex();

  SDObject *par = NULL;

  if(parent.isValid())
  {
    Index decodedParent = decodeIndex(parent);

    // the children of page nodes are real nodes. We cache the array member's index here too for
    // parent() lookups
    if(decodedParent.tag == PageNode)
    {
      int idx = decodedParent.indexInArray + row;

      m_ArrayMembers[decodedParent.obj->GetChild(idx)] = idx;

      return createIndex(row, column, encodeIndex({ArrayMember, decodedParent.obj, idx}));
    }
    else if(decodedParent.tag == ArrayMember)
    {
      par = decodedParent.obj->GetChild(decodedParent.indexInArray);
    }
    else
    {
      par = decodedParent.obj;
    }

    // if this parent node is a large array, the children are page nodes, otherwise the child is a
    // direct node
    if(isLargeArray(par))
    {
      return createIndex(row, column, encodeIndex({PageNode, par, row * ArrayPageSize}));
    }
    else
    {
      if(par->type.flags & SDTypeFlags::HiddenChildren)
      {
        // if this node has hidden children, get the index relative to only visible children
        int idx = 0;
        for(size_t i = 0; i < par->NumChildren(); i++)
        {
          SDObject *ch = par->GetChild(i);

          if(ch->type.flags & SDTypeFlags::Hidden)
            continue;

          if(idx == row)
            return createIndex(row, column, encodeIndex({Direct, ch, 0}));

          idx++;
        }
      }

      return createIndex(row, column, encodeIndex({Direct, par->GetChild(row), 0}));
    }